Where is the first place digestion occurs?

The kidneys filter wastes from the

What are proteins made of?

Which would be considered a grain?

What is the main source of energy for your body?

Look at the diagram.

Where does most absorption of nutrients occur?

What is the correct order for how food is processed in the digestive system?

What organ is shown?

What organ produces a substance that neutralizes acid from the stomach?

What fluid produced in the mouth contains digestive enzymes?

Carbon dioxide is eliminated by which body system?

What is produced by the urinary system?

The bladder is most similar to which object?

Which process depends on enzymes?

Where does the first filtration process occur in the nephron shown?

Which factor does NOT influence how much energy a person needs?

In which part of the system pictured does chemical digestion begin?

In the diagram, from which organ are nutrients absorbed into the bloodstream?

What is a main function of the excretory system?

Which part of the brain works with the urinary system to help maintain homeostatis?

In the diagram, where is urine produced?

Which system works with the digestive system to carry nutrients to the cells of the body?